| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 5.146 INCHES MINIMUM AND 5.166 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 7456 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.232 INCHES MINIMUM AND 0.236 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 2.109 INCHES NOMINAL |
| SHOULDER DIAMETER | 0.338 INCHES MINIMUM AND 0.340 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| STUD END SHANK DIAMETER | 0.232 INCHES MINIMUM AND 0.236 INCHES MAXIMUM |
| STUD END SHANK LENGTH | 0.807 INCHES NOMINAL |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM NUT THREAD |
| THREAD LENGTH | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM STUD THREAD |
| THREAD QUANTITY PER INCH | 18 STUD THREAD |
| THREAD PITCH DIAMETERS | +0.2843 TO 0.2869 INCHES STUD THREAD |
| THREAD SERIES DESIGNATOR | UNS STUD THREAD |